These are the things you need to consider before choosing to work with a photographer….
If anyone shoots enough photos, he or she is going to have a few lucky good shots to pick from. What you want to see in a photographer’s portfolio is consistency. This means you should look for several good shots done during a single shoot. If a photographer doesn’t have examples readily available on-line, see if he/she is willing to provide you with a few other good examples from a single photo shoot with a model. You should be confident that working with a particular photographer will yield work of a consistently high quality.
Most good photographers develop their own distinct style. This doesn’t mean one style is necessarily better than another in any absolute sense. But this does mean that you should pick a photographer who shows you examples of the kind of photography that you want in your portfolio.
Does the photographer have something to offer? Are you confident in the photographer’s work and abilities to the point that you believe working with the photographer will help advance your career in one fashion or another or somehow open up other opportunities? (written by Zero Dean)